Heating apparatus for instruments.



H. BECK.

HEATING APPARATUS FOR INSTRUMENTS.

APPLICATION IILED FEB.11, 1911.

WITNESSES HEihr-icJ-L Beck w a Patented Dec. 3, 1912.

[N VEN T OR A ltarney pain HEINRICH BECK, OIE MEININGEN, GERMANY.

HEATING APPARATUS FOR INSTRUMENTS Specification of Letters Patent.

Patented Dec. 3,1912.

Application filed February 11, 1911. Serial No. 608,123.

To all whom it may concern:

Be it known that I, HEINRICH BECK, a civil engineer, citizen ofMeiningen, Germany, residing at Meiningen, Germany, have invented newand useful Improvements in Heating Apparatus for Instruments, of whichthe following is a specification.

The present invention relates to an apparatus for heating instrumentssuch as curling tongs, sad irons or the like, whereby the instrumentsare treated without any danger of being overheated.

The apparatus includes a jacketed container, preferably of tubularshape, the jacket being filled with a liquid heated by suitable meanssuch as a gas burner or spirit lamp. The vapors thereby generated andpassing off from the liquid are condensed in a condenser pipe and thecondensation liquid is again returned into the j acketing.

In apparatus, for heating the instruments, of the above described class,the present invention aims at obtaining as perfect a condensation of thevapors, in as short a condenser pipe as possible, and without watercooling.

Further objects of the invention are to avoid the filling of the spaceover the liquid in the jacketing with undesirable gases, and with thisend in view, I preferably provide a gas-tight closure for the condenserpipe which is in communication with the jacketing. The present inventiontherefore admits of a compact construction with pleasing lines andgreatly simplifies and cheapens the manufacture of the apparatus. Forobtaining this object the hot vapors are forced, shortly after they haveentered the condenser pipe, to transfer a great part of the heat to agood heat conductor projecting into the condenser pipe, which heatconductor will carry off most of the heat absorbed, in a direct-ionopposite to that of the rising vapors. At a part as cool as possible,the condenser pipe is provided with a small opening, to which a smalltube may be (ll? rectly connected, or through the intermediacy of a ringdome, such tube being open at the opposite end and arranged in engagingproximity to the flame of a heating burner. By the eflective condensingarrangement the vapors are so strongly cooled and condensed, thatpractically no vapors can escape from the condenser pipe anddisagreeable odors are efiectively avoided. Any TZLPOFS escaping, incase of a great overheating, will be conducted in this tube arrangementof the condenser pipe to the heating flame and there burned withoutcreating any odor. This heating flame closes the tube of the condenserpipe extending into the flame while the apparatus is in use, against theentrance of atmospheric oxygenous air, so that during such time no aircan enter into the interior of the condenser pipe and the jacketing andno noxious dccomposition of the liquid by oxidization will be producedas would occur should the vessel be filled with undesirable gases. Theopening of the condenser pipe is preferably closed by a valve ofsuitable design which will automatically open only when the apparatus isheated during use so as to avoid an unnecessary evaporation or leakageof the liquid while the apparatus is not in use. If the apparatus isconsiderably cooled say by cold curling tongs being placed in it, in

different gases of the heating flame are asplrated through the smallauxiliary tube.

The pressure will always remain about equal to the atmospheric pressure,thus practically constant.

In the drawing, forming a part of this specification: Figure 1 is a sideelevation of a device constructed according to my invention, part beingbroken away to disclose details of construction. Fig. 2 is a frontelevation of the upper portion of the device as disclosed in Fig. 1,parts being broken away to disclose details of construction.

In the drawings, 1' designates a receptacle or receiving means for theinstrument or instruments to be heated, such receptacle being surroundedby a jacketing a adapted to contain liquid. The liquid is heated by aburner 76 and the vapors given olf by the liquid are conducted throughpipes Z) and 0 into a main condenser pipe (Z. In this pipe a heatabsorbing member f is arranged, which tapers as at 9 above the mouth ofpipe 0 into pipe d, so that the hot vapors flow around this tapered part9 of the member f and transfer this heat to this part 9. The greaterpart of the heat absorbed by part 9 is conducted to the lower solid partf of the member. This absorption of heat is so great that the con denserpipe d may be made comparatively short and a dome in which the pipe atterminates at the top, will hardly get more than luke-warm. The heatconductor portion 9 may lead, as shown in the drawing, from the ringdome to a small collecting vessel Z provided at the lower portion of thetube, this vessel having an egress tube Z or similar means opened inclose proximity to the flame from burner 70 when operating. Any vaporsescaping from the condenser tube will be conducted through tube 6 andemitted into the heating flame where it is consumed without creating adisagreeable odor. Should any moisture gather, or be conducted into thetube a, it may, by gravity, collect in the vessel Z and be withdrawntherefrom by removing plug Z.

The operation of the device is as follows: Liquid is admitted into thejacketing a to approximate the level illustrated in the drawing, or tooccupy about one-half of the content volume of the jacketing, and theburner 70 is lighted. The instrument or in struments portions to beheated are placed within the receptacle 0", the vapor arising from theliquid is conducted successively through pipes b and c to the condenserpipe cl and contacts with the portion g of the member 7, where the heatis absorbed and the vapor transformed into liquid. The liquid flows downthe portion 9 to the juncture of pipes (Z and c, flows through thelatter to pipe 6 and thence back to the jacketing a, such return ofliquid being through the force of gravity. It is of course, understoodthat the pipes Z) and 0 are of such a size as to have capacity forconveying both the rising vapor and the returning liquid, and furtherthan that I do not wish to be limited to the exact arrangement of pipesb and 0, since any construction, consistent with the object of thisinvention may be used whereby communication is formed betweenthe'jacketing and the condenser pipe, without departing from the spiritof my invention.

I claim:

1. A heating apparatus of the character described comprising incombination, a receptacle for receiving instruments to be heated, ajacketing therefor adapted to contain liquid, means disposed exteriorlyof said receptacle and said jacketing for transforming said liquid intovapor, a condenser, a heat absorbing member within said condenser, andmeans forming a fluid tight communication between said jacketing and thelowermost portion of said condenser for conducting vapor from the formerto the latter and providing for return of the liquid to the former bygravity through said communicating means.

2. A heating apparatus of the character described comprising incombination, a re ceptacle, a jacketing therefor adapted to containliquid, a burner, a condensing device, means forming a communicationbetween said jacketing and condensing device for return of the liquid tothe former by gravity, and a conducting member in communication withsaid condensing device and having an end opening in proximity to theflame of said burner.

3. A heating apparatus of the character described comprising incombination, a receptacle, jacketing therefor adapted to contain liquid,a burner, a condensing device, means forming a communication bet-weensaid jacketing and condensing device providing return of the liquid tothe former by gravity, a conducting member in communication withsaidcondensing device and having an end open in proximity to the flameof said burner, and a collecting vessel communicating with saidconducting member for collecting fluid therefrom by gravity.

4. A heating apparatus of the character described comprising incombination, a receptacle, a jacketing therefor adapted to con- 7 tainliquid, a burner, a condensing member, means formlng communlcatlonbetween said jacketing and condensing device providing the return of theliquid to the former by gravity, a conducting member in communicationwith said condensing device and hav-' a ing an end open in proximity tothe flame of said burner, and a valve for controlling said conductingmember, substantially as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

, HEINRICH BECK.

Witnesses:

M. O; DILLINGHAM, J. H nze.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

